The ObservabilityMatrix command computes the observability matrix of a state-space system.

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If the parameter sys is a state-space System, then the A and C Matrices are sys:-a and sys:-c, respectively.

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If the parameters Amat and Cmat are Matrices, then they are the A and C Matrices, respectively.

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The observability matrix has dimensions o*n x n, where n is the number of states (dimension of A) and o is the number of outputs (row dimension of C) It has the form <<C>, <C . A>, <C . A^2>, <C . A^3>, ..., <C . A^(n-1)>>.

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